原生动物群落多样性变化与汉沽稳定塘水质净化效能相互关系的研究  

The purification efficiency of the Hangu Stabilization Ponds and its relationship with biodiversity of protozoan community

作　　者：许木启[1] 曹宏[1] 王玉龙 

机构地区：[1]中国科学院动物研究所,北京100080 [2]天津汉沽环境保护监测站,天津300480

出　　处：《生态学报》2000年第2期283-287,共5页Acta Ecologica Sinica

基　　金：国家自然科学基金重点资助项目 !( 3 973 0 0 70 ) ;中国科学院"九五"重点资助项目! ( 6-1 52 1 1 1 -0 6)

摘　　要：天津汉沽生物稳定塘是近年建成并投入运行的多级污水净化系统和示范工程。论文报道了汉沽稳定塘各塘主要污染物的去除效果 ,重点论述了原生动物群落多样性变化及其结构和功能特征与水质净化的相互关系。研究结果表明 ,5个采样站原生动物群落结构与功能参数的变化与各级塘中污染物的浓度关系密切。进水口 ( 1号站 )由于各种污染物含量很高 ,原生动物种类数、个体数量、多样性指数 d值和 PFU原生动物的群集速度 (功能参数 )都为零。随流程延长 ,水质逐塘得以改善 ,生物逐渐恢复。至出水口 ( 5号生态塘 ) ,几种主要污染物浓度急剧下降 ,原生动物的各项监测指标均明显上升。The Hangu multiple cell stabilization ponds with the daily treatment capability of 50 000 tons of wastewater was constructed in 1993 and put into operation in 1995.Establishment of this system is important for controlling the red tide and improving water environment in the Bohai Sea.The investigations on the relationship between self purification efficiency and variation in biodiversity of protozoan community in various levels of ponds were carried out.The results indicated that the main pollutants were removed in high rate and that variations in protozoan community's structure and function were strongly related to water quality in ponds with different purification grade.Five sampling stations from the input pond to the output pond were distinguishable in differences in species richness,individual abundance,diversity index and PFU colonizing rate during 1～3 day.In the first pond with the highest concentrations of COD,BOD,N and P the species richness,individual abundance and PFU colonization rate were zero.Water quality in the last pond was greatly improved and this situation could be reflected by dramatic increase in the species richness,the high PFU colonization rate and high diversity index d value,along with the reduction of pollutants.The number of protozoan species colonising on PFU after exposure of 1 to 3 days was found to give a clear comparative indications of the water quality at the five stations.

关 键 词：汉沽稳定塘 原生动物 群落多样性 水质 净化 

分 类 号：X17[环境科学与工程—环境科学]